Steering device for tongues.



APPLICATION TILED OCT. 15h 1912.

.Patented June 10, 1913.

Msg/2% JOSEPH A. DRURY, 0F WYKOFF, MINNESOTA.

STEERING DEVICE FOR TONGUES.

specification of Letters Patent.

Patented June 10, 1913.

Application led October 19, 1912. Serial No. 726,754.

To all whom it may concern.'

Be it, known that I, JOSEPH A. DBURY, a citizen of the United States, residin at Wyko", in the county of Fillmore and tate of Minnesota, have invented a new and usefill'Steering Device for Tongues;'and I do hereby ldeclare the following to be a full, clear,1 and`\exact description of the invention, such as will enable others skilled in the artto` whichl it appertains to make and use the same.

This invention relates to a new and useful steering a paratus, adapted for use in connection wit tongues of grain thrcshers, clover hullers, corn threaders, and hay presses, and the like.

As one of the objects of the invention, it

'is the aim to provide a sectional tongue having a coupling steering device connectmg the two sections of the tongue, whereby `as a crank shaftv is rotated, the front axle and its wheels will be guided.4

The invention comprises further features and combination of parts, as hereinafter setforth, shown in the drawings and claimed. In the drawings t-Figure 1. is a plan view, showing'- the application ofthe improved steeringr apparatus. Fig. 2 is a side elevation. Fig. 3 is a view in side elevation and partly in section of the improved steering apparatus 'l Referring inthe especially to the drawings 1 designates the front axle of any form or construction of vehicle havingr the clevis 'members 2 and 3, the clevis members f2 being carriedby'the axle adjacent its ends, while the clevis member-3 is arranged cen'- trally of the axle. Pivoted in the clevis member 3 is the tongue 4, which comprises the two sections 5 and 6 connected together by the plates 7 and 8, one secured above and the other below. Journaled in bearings of said plates is a shaft 9, upon the lower end of which a gear 10 is keyed. This gear il() is located between the plates 7 and 8, while upon the upper portion'of the shaft a worm wheel 11 is keyed. Mounted in bearings 1'2 of the plate 7 is a shaft 13 having a worm 11 at one end to mesh with the worm wheel 11, and a crank 15 at the other end, it being' The extensions are designated by the nu-` 4 As the shaft 9 is rotated, the gear 10 is in turn rotated, which will moveeach rack in one direction or the other, which in turn The rollers will oscillate the axle 1 in the desired direction.

From the foregoing it will benoted that there has been devised a simple and efficient steeringr mechanism for tongues-of threshing machines and the like, and one which has been found practical.

The invention having been set forth, what is claimed as new and usefnliis: i

In combination, an axle, a tongue pivoted centrally to the axle, the tongue comprisingr two sections, a pair of plates connecting the sections, one above and one below, a shaft journalcd in said plates and provided with a gear wheel 'on its lower portion between the adjacent ends of the sections and between the plates, a worm wheel on the upper portion` of said shaft, the plates having lateral extensions, racks meshing,r with the gear, one upon each side of the tongue, each rack having pivotal connections with one end of the axle, rollers journaled between the lateral extensions, one upon each Side of the tongue, for holding the racks in mesh with the gear, and means mounted in bearings of ont` of said plates for rotatingthe worm wheel.

`ln testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses. i

JOSEPH A. DRURY.

Witnesses Flinn lVEN1 our, JOHN lVENnom-n 

